i havnt got integrated video, got a shuttle SN45G with an Asus radeon 9600SE. the refresh rate is set to 60hz, this monitor can only support 60, 72 and 75hz. tried them all but the other 2 make the screen very blury. after it warms right up it starts to constantly flicker, however, its been on all day so far (from 10am till 5pm) and its not flickering??? its not as warm as it was last night though??? maybe when it gets really hot it starts to flicker?? ive emailed samsung anyways and am waitin for a reply